Road Runner Express originally opened at Jazzland in New Orleans on May 20, 2000. It operated under the name Rex's Rail Runner in the Kid's Carnival section of the park. Six Flags took over the lease of Jazzland in 2002 and changed the park's name to Six Flags New Orleans. The ride was renamed to Road Runner Express in the Looney Tunes Adventures section of the park. When Hurricane Katrina hit the park on August 29, 2005, the park was severely flooded causing the park to shut down and rides to remain standing but not operating. In 2007, Six Flags began the process of moving rides from the park to their other properties. In 2009, Road Runner Express was removed and relocated to Six Flags Magic Mountain.